[linux-2.6-block.git] / arch / um / Kconfig.char

# SPDX-License-Identifier: GPL-2.0
menu "UML Character Devices"

config STDERR_CONSOLE
	bool "stderr console"
	default y
	help
	  console driver which dumps all printk messages to stderr.

config SSL
	bool "Virtual serial line"
	help
          The User-Mode Linux environment allows you to create virtual serial
          lines on the UML that are usually made to show up on the host as
          ttys or ptys.

          See <http://user-mode-linux.sourceforge.net/old/input.html> for more
          information and command line examples of how to use this facility.

          Unless you have a specific reason for disabling this, say Y.

config NULL_CHAN
	bool "null channel support"
	help
          This option enables support for attaching UML consoles and serial
          lines to a device similar to /dev/null.  Data written to it disappears
          and there is never any data to be read.

config PORT_CHAN
	bool "port channel support"
	help
          This option enables support for attaching UML consoles and serial
          lines to host portals.  They may be accessed with 'telnet <host>
          <port number>'.  Any number of consoles and serial lines may be
          attached to a single portal, although what UML device you get when
          you telnet to that portal will be unpredictable.
          It is safe to say 'Y' here.

config PTY_CHAN
	bool "pty channel support"
	help
          This option enables support for attaching UML consoles and serial
          lines to host pseudo-terminals.  Access to both traditional
          pseudo-terminals (/dev/pty*) and pts pseudo-terminals are controlled
          with this option.  The assignment of UML devices to host devices
          will be announced in the kernel message log.
          It is safe to say 'Y' here.

config TTY_CHAN
	bool "tty channel support"
	help
          This option enables support for attaching UML consoles and serial
          lines to host terminals.  Access to both virtual consoles
          (/dev/tty*) and the slave side of pseudo-terminals (/dev/ttyp* and
          /dev/pts/*) are controlled by this option.
          It is safe to say 'Y' here.

config XTERM_CHAN
	bool "xterm channel support"
	help
          This option enables support for attaching UML consoles and serial
          lines to xterms.  Each UML device so assigned will be brought up in
          its own xterm.
          It is safe to say 'Y' here.

config NOCONFIG_CHAN
	bool
	default !(XTERM_CHAN && TTY_CHAN && PTY_CHAN && PORT_CHAN && NULL_CHAN)

config CON_ZERO_CHAN
	string "Default main console channel initialization"
	default "fd:0,fd:1"
	help
          This is the string describing the channel to which the main console
          will be attached by default.  This value can be overridden from the
          command line.  The default value is "fd:0,fd:1", which attaches the
          main console to stdin and stdout.
          It is safe to leave this unchanged.

config CON_CHAN
	string "Default console channel initialization"
	default "xterm"
	help
          This is the string describing the channel to which all consoles
          except the main console will be attached by default.  This value can
          be overridden from the command line.  The default value is "xterm",
          which brings them up in xterms.
          It is safe to leave this unchanged, although you may wish to change
          this if you expect the UML that you build to be run in environments
          which don't have X or xterm available.

config SSL_CHAN
	string "Default serial line channel initialization"
	default "pty"
	help
          This is the string describing the channel to which the serial lines
          will be attached by default.  This value can be overridden from the
          command line.  The default value is "pty", which attaches them to
          traditional pseudo-terminals.
          It is safe to leave this unchanged, although you may wish to change
          this if you expect the UML that you build to be run in environments
          which don't have a set of /dev/pty* devices.

config UML_SOUND
	tristate "Sound support"
	help
          This option enables UML sound support.  If enabled, it will pull in
          soundcore and the UML hostaudio relay, which acts as a intermediary
          between the host's dsp and mixer devices and the UML sound system.
          It is safe to say 'Y' here.

config SOUND
	tristate
	default UML_SOUND

config SOUND_OSS_CORE
	bool
	default UML_SOUND

config HOSTAUDIO
	tristate
	default UML_SOUND

endmenu
Commit	Line	Data
b2441318	1	# SPDX-License-Identifier: GPL-2.0
d805a786	2	menu "UML Character Devices"
1da177e4 LT	3
	4	config STDERR_CONSOLE
	5	bool "stderr console"
	6	default y
	7	help
4c9e1385	8	console driver which dumps all printk messages to stderr.
1da177e4	9
1da177e4 LT	10	config SSL
	11	bool "Virtual serial line"
	12	help
4c9e1385 JD	13	The User-Mode Linux environment allows you to create virtual serial
	14	lines on the UML that are usually made to show up on the host as
	15	ttys or ptys.
1da177e4	16
0ba9d3f9	17	See <http://user-mode-linux.sourceforge.net/old/input.html> for more
4c9e1385	18	information and command line examples of how to use this facility.
1da177e4	19
4c9e1385	20	Unless you have a specific reason for disabling this, say Y.
1da177e4 LT	21
	22	config NULL_CHAN
	23	bool "null channel support"
	24	help
4c9e1385 JD	25	This option enables support for attaching UML consoles and serial
	26	lines to a device similar to /dev/null. Data written to it disappears
	27	and there is never any data to be read.
1da177e4 LT	28
	29	config PORT_CHAN
	30	bool "port channel support"
	31	help
4c9e1385 JD	32	This option enables support for attaching UML consoles and serial
	33	lines to host portals. They may be accessed with 'telnet <host>
	34	<port number>'. Any number of consoles and serial lines may be
	35	attached to a single portal, although what UML device you get when
	36	you telnet to that portal will be unpredictable.
	37	It is safe to say 'Y' here.
1da177e4 LT	38
	39	config PTY_CHAN
	40	bool "pty channel support"
	41	help
4c9e1385 JD	42	This option enables support for attaching UML consoles and serial
	43	lines to host pseudo-terminals. Access to both traditional
	44	pseudo-terminals (/dev/pty*) and pts pseudo-terminals are controlled
	45	with this option. The assignment of UML devices to host devices
	46	will be announced in the kernel message log.
	47	It is safe to say 'Y' here.
1da177e4 LT	48
	49	config TTY_CHAN
	50	bool "tty channel support"
	51	help
4c9e1385 JD	52	This option enables support for attaching UML consoles and serial
	53	lines to host terminals. Access to both virtual consoles
	54	(/dev/tty) and the slave side of pseudo-terminals (/dev/ttyp and
	55	/dev/pts/*) are controlled by this option.
	56	It is safe to say 'Y' here.
1da177e4 LT	57
	58	config XTERM_CHAN
	59	bool "xterm channel support"
	60	help
4c9e1385 JD	61	This option enables support for attaching UML consoles and serial
	62	lines to xterms. Each UML device so assigned will be brought up in
	63	its own xterm.
	64	It is safe to say 'Y' here.
1da177e4 LT	65
	66	config NOCONFIG_CHAN
	67	bool
	68	default !(XTERM_CHAN && TTY_CHAN && PTY_CHAN && PORT_CHAN && NULL_CHAN)
	69
	70	config CON_ZERO_CHAN
	71	string "Default main console channel initialization"
	72	default "fd:0,fd:1"
	73	help
4c9e1385 JD	74	This is the string describing the channel to which the main console
	75	will be attached by default. This value can be overridden from the
	76	command line. The default value is "fd:0,fd:1", which attaches the
	77	main console to stdin and stdout.
	78	It is safe to leave this unchanged.
1da177e4 LT	79
	80	config CON_CHAN
	81	string "Default console channel initialization"
	82	default "xterm"
	83	help
4c9e1385 JD	84	This is the string describing the channel to which all consoles
	85	except the main console will be attached by default. This value can
	86	be overridden from the command line. The default value is "xterm",
	87	which brings them up in xterms.
	88	It is safe to leave this unchanged, although you may wish to change
	89	this if you expect the UML that you build to be run in environments
	90	which don't have X or xterm available.
1da177e4 LT	91
	92	config SSL_CHAN
	93	string "Default serial line channel initialization"
	94	default "pty"
	95	help
4c9e1385 JD	96	This is the string describing the channel to which the serial lines
	97	will be attached by default. This value can be overridden from the
	98	command line. The default value is "pty", which attaches them to
	99	traditional pseudo-terminals.
	100	It is safe to leave this unchanged, although you may wish to change
	101	this if you expect the UML that you build to be run in environments
	102	which don't have a set of /dev/pty* devices.
1da177e4	103
1da177e4 LT	104	config UML_SOUND
	105	tristate "Sound support"
	106	help
4c9e1385 JD	107	This option enables UML sound support. If enabled, it will pull in
	108	soundcore and the UML hostaudio relay, which acts as a intermediary
	109	between the host's dsp and mixer devices and the UML sound system.
	110	It is safe to say 'Y' here.
1da177e4 LT	111
	112	config SOUND
	113	tristate
	114	default UML_SOUND
	115
d886e87c TH	116	config SOUND_OSS_CORE
	117	bool
	118	default UML_SOUND
	119
1da177e4 LT	120	config HOSTAUDIO
	121	tristate
	122	default UML_SOUND
	123
1da177e4	124	endmenu